St. Brigid's Day is celebrated on February 1st each year, marking the feast day of St. Brigid of Kildare, one of Ireland's patron saints. This day also coincides with the beginning of spring in the Celtic calendar, symbolizing renewal and fertility. Traditionally, people honor St. Brigid by making Brigid's crosses, woven from rushes, which are believed to protect homes from fire and evil. The day is also associated with various customs, including feasting and celebrating the arrival of spring, reflecting the importance of St. Brigid in Irish culture and spirituality.